Ack! 40 minutes into my first samurai, I find myself completely blocked in r7c2 of the centre grid. None of the 9 numbers left will go there. Does any1 know what I might have done wrong?
Obviously you must have gone wrong somewhere if you have a cell that can't take any value, but it's hard to say without more information. The cell in question should be an 8, so wherever the 8 you have blocking that possibility is, that must be wrong. (This is of course assuming that I've done it right.)